The Penn Press list for spring 2020 includes hardcover releases, first-time paperbacks, and ebook editions intended for scholars, students, and serious general readers worldwide. Click here to explore our forthcoming books, grouped by subject area.
84 pages | 6 x 9 | 40 illus.
Ebook 2018 | ISBN 9781512821093 | Buy from De Gruyter $79.95 | €69.95 | £70.50
This book is available under special arrangement from our European publishing partner De Gruyter.
An Anniversary Collection volume
The relation of the central nervous system and neurohumors as factors in the chromatophore reactions of the Dogfish and the Killfish, revealing the two functions are interdependent.
G. H. Parker was Professor of Zoology, Emeritus, at Harvard University.